Adsorption-desorption behavior of carbendazim by sewage sludge-derived biochar and its possible mechanism.

ABSTRACT: Biochar application in agricultural soil for environmental remediation has received increasing attention, however, few studies are focused on sewage sludge based biochar. The present study evaluated the effect of raw sewage sludge and sewage sludge based biochars produced at different pyrolysis temperatures (100-700 °C) on the adsorption-desorption of carbendazim in soil. Sewage sludge derived biochar significantly enhanced the sorption affinity and limited the desorption capacity of the soil for carbendazim. A maximum removal efficiency of 98.9% and a greatest value of 144.05 ± 0.32 μg g^-1 sorption capacity occurred in soil amended with biochar pyrolyzed at 700 °C (BC700). As the pyrolysis temperature and the amendment rate of biochars increased, the sorption of carbendazim was

SUBMITTER: Ding T 

PROVIDER: S-EPMC9074120 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature